I am running Bitcoin Core version v0.19.0.1 (64-bit) on Windows 7, and on 27 February I noticed that it sent 0.0045 bitcoins on its own.
The wallet is encrypted at all times and I enter the passphrase to send as required.
I did NOT initiate the Send.
I am greatly concerned. The PC is regularly checked for virus and malware.
The transaction details are:-
Status: 320 confirmations Date: 27/02/2020 16:37 To: bc1qz944eascuflps4nmsc0w5cpz9p3cxdyqjmmqw7 Debit: -0.00447194 BTC Transaction fee: -0.00002806 BTC Net amount: -0.00450000 BTC Transaction ID: 3c138afea7d634ce5e8b608e1a751122d6d33ba9bd8e00a02de02cb57aad039d Transaction total size: 214 bytes Transaction virtual size: 133 bytes Output index: 0
The previous transaction:-
Status: 455 confirmations Date: 26/02/2020 18:27 From: unknown To: 3Hb61TTkbxPTUCA6EvUStb8PPMZUjPASfd (own address, label: coinfloor) Credit: x.xxxxxxxx BTC Net amount: +x.xxxxxxxx BTC Transaction ID: 5697d9b298647c216a727f95dbdecfc658a9f8da3c45f98bc8c8a2439c8f1cfc Transaction total size: 404 bytes Transaction virtual size: 214 bytes Output index: 1
The last time I sent was with this:-
Status: 43126 confirmations Date: 17/05/2019 07:25 To: Coinfloor 5 10 13vk63282b4FkhyyV9mmgQTxpao9ECnnmB Debit: -x.xxxxxxxx BTC Transaction fee: -x.xxxxxxxx BTC Net amount: -x.xxxxxxxx BTC Transaction ID: d23b6c3f42339ace670d0ebdca4eabcfe45c34b0ccab44c9767a519682e415ba Transaction total size: 932 bytes Transaction virtual size: 530 bytes Output index: 1
I would like to know how this could have happened, because I definitely did NOT initiate this send.
Any suggestions about how to diagnose this? I expect there's no way to recover the 0.0045 coins.